CN215066013U - Polymer modified concrete impermeability test equipment - Google Patents
Polymer modified concrete impermeability test equipment Download PDFInfo
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- CN215066013U CN215066013U CN202120926123.3U CN202120926123U CN215066013U CN 215066013 U CN215066013 U CN 215066013U CN 202120926123 U CN202120926123 U CN 202120926123U CN 215066013 U CN215066013 U CN 215066013U
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- 238000012360 testing method Methods 0.000 title claims abstract description 66
- 239000011388 polymer cement concrete Substances 0.000 title claims abstract description 12
- 239000004567 concrete Substances 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 138
- 238000002347 injection Methods 0.000 claims description 44
- 239000007924 injection Substances 0.000 claims description 44
- 238000007789 sealing Methods 0.000 claims description 25
- 238000013100 final test Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of concrete impermeability tests, and provides polymer modified concrete impermeability test equipment, which comprises a concrete sample, a base and a support arranged at the top of the base, wherein an upper barrel is arranged at the bottom of the support, a lower barrel is arranged below the upper barrel, a linear driving device for driving the lower barrel to reciprocate along the vertical direction is arranged on the base, and a pressurizing device is arranged in the upper barrel; during the experiment, the top surface and the first butt piece bottom surface butt of concrete sample are sealed, and the bottom surface and the second butt piece top surface butt of concrete sample are sealed, and lower barrel top end face and last barrel bottom end face butt are sealed. The utility model discloses improve the mechanism of barrel and lower barrel on prior art's basis for in concrete sample is in a relatively inclosed space when experimental, improve the accuracy of final test result.
Description
Technical Field
The utility model relates to a concrete impermeability test technical field particularly, relates to a polymer modified concrete impermeability test equipment.
Background
The impermeability of concrete is an important durability index of concrete, and is one of the main testing items in each laboratory. At present, concrete impermeability test methods mainly comprise three methods, specifically an impermeability grade method, a water seepage height method and a water seepage method. However, the commonly used concrete impermeability test device in the prior art is generally only suitable for one test method and can not meet the test requirements of different types of concrete,
therefore, patent document No. CN209570487U discloses a concrete impermeability test device, which belongs to the technical field of concrete impermeability tests, and is applicable to both a water seepage height method and a water seepage method, and can meet the test requirements of different types of concrete. The testing device comprises a shell, wherein an upper cylinder and a lower cylinder are arranged in the shell; the bottom of the upper cylinder is open and connected with the top wall of the shell; the top of the lower cylinder body is open and is supported on the bottom wall of the shell through the lifting assembly; the inner wall of the upper cylinder body is fixedly connected with a first compression ring, and the first compression ring is abutted and sealed with the edge of the top surface of the concrete test piece; the inner wall of the lower cylinder body is fixedly connected with a second compression ring, and the second compression ring is abutted and sealed with the edge of the bottom surface of the concrete test piece; the upper barrel is connected with a first water injection pipe and a first water drainage pipe, the lower barrel is connected with a second water injection pipe and a second water drainage pipe, and the first water injection pipe and the second water injection pipe are both connected with a water tank; the side wall of the upper cylinder body is provided with a pressure gauge, and a piston assembly is also arranged in the upper cylinder body; one side wall of the shell is provided with a window. However, in the actual test process, the concrete sample between the upper cylinder and the lower cylinder is completely exposed, and water cannot be ensured to permeate along the vertical direction when permeating in the concrete sample and finally flows out from the bottom of the concrete sample, and if the water flows out from the side wall of the concrete sample, the final test result is directly influenced, so that test errors occur.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a polymer modified concrete impermeability test equipment, its accuracy that can improve the impermeability test result.
The embodiment of the utility model discloses a realize through following technical scheme:
a polymer modified concrete impermeability test device comprises a concrete test piece, a base and a support arranged at the top of the base, wherein an upper barrel is arranged at the bottom of the support, a lower barrel is arranged below the upper barrel, a linear driving device used for driving the lower barrel to reciprocate along the vertical direction is arranged on the base, a pressurizing device is arranged in the upper barrel, a plurality of first abutting blocks are arranged on the inner wall of the upper barrel along the circumferential direction of the upper barrel, and a plurality of second abutting blocks are arranged on the inner wall of the lower barrel along the circumferential direction of the lower barrel; during the test, the top surface of the concrete test piece is abutted and sealed with the bottom surface of the first abutting block, the bottom surface of the concrete test piece is abutted and sealed with the top surface of the second abutting block, and the top end surface of the lower cylinder is abutted and sealed with the bottom end surface of the upper cylinder.
Optionally, an annular sealing groove is formed in the end face of the bottom of the upper cylinder body along the circumferential direction of the upper cylinder body, and annular sealing strips in one-to-one correspondence with the annular sealing grooves are arranged in the end face of the top of the lower cylinder body along the circumferential direction of the lower cylinder body.
Furthermore, the quantity of annular sealing strip is a plurality of, and is a plurality of the internal diameter and the height of annular sealing strip increase in proper order from inside to outside.
Optionally, the inner wall of the upper barrel body is provided with a sliding groove in one-to-one correspondence with the first abutting block along the vertical direction, the first abutting block is slidably arranged in the sliding groove, an elastic part is arranged in the sliding groove, one end of the elastic part is connected with the top in the sliding groove, and the other end of the elastic part is connected with the first abutting block.
Further, the elastic piece includes fixed column, flexible post and spring, fixed column one end with top connection in the spout, flexible post one end extend to in the fixed column back with fixed column sliding connection, flexible post other end with first butt piece is connected, the spring housing is located the fixed column outer wall, spring one end with top connection in the spout, the spring other end with first butt piece is connected.
Optionally, still include pressure measurement table, first water tank, first water injection pipe, first drain pipe, second water tank, second water injection pipe and second drain pipe, the pressure measurement table is located go up the barrel outer wall, first water tank install in on the support, first water tank with go up the barrel inside through first water injection pipe intercommunication, the second water tank install in on the base, the second water tank with go up the barrel inside through first drain pipe intercommunication, the second water tank with the barrel is inside to be passed through down second water injection pipe intercommunication, the second drain pipe with barrel inside intercommunication down.
Further, the first water injection pipe, the first drain pipe the second water injection pipe with all be connected with the valve on the second drain pipe, the second water injection pipe is the hose.
Optionally, the pressurizing device comprises a piston arranged inside the upper cylinder in a sliding manner, the side wall of the piston is connected with the inner wall of the upper cylinder in a sealing manner, the piston is located above the first abutting block, a cylinder is arranged on the support, and the output end of the cylinder extends to the inside of the upper cylinder and then is connected with the piston in a vertical direction.
Optionally, the bottom of the base is provided with universal self-locking wheels.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
the utility model relates to a rationally, its mechanism of barrel and lower barrel on the improvement on prior art's basis for in concrete sample was in a relatively inclosed space when experimental, concrete sample's outer wall can be sealed, even water flows the back from concrete sample's outer wall, also can continue to flow to concrete sample's bottom along vertical direction, thereby reaches the purpose that improves final test result accuracy.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a concrete impermeability test device provided by an embodiment of the utility model;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a schematic structural diagram of the concrete impermeability test equipment provided by the embodiment of the utility model during the test.
Icon: 1-base, 2-support, 3-universal self-locking wheel, 4-upper cylinder, 5-lower cylinder, 6-linear driving device, 7-piston, 8-cylinder, 9-pressure detecting meter, 10-first water tank, 11-first water injection pipe, 12-first water discharge pipe, 13-second water tank, 14-second water injection pipe, 15-second water discharge pipe, 16-first abutting block, 17-second abutting block, 18-annular sealing groove, 19-annular sealing strip, 20-fixed column, 21-telescopic column, 22-spring and 100-concrete sample.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of this application is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated is not to be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1, the embodiment provides a polymer modified concrete impermeability test device, which includes a concrete sample 100, a base 1 and a bracket 2 disposed on the top of the base 1, in order to facilitate moving the whole concrete impermeability test device, a universal self-locking wheel 3 that is flexible to move and convenient to fix is disposed on the bottom of the base 1, and the universal self-locking wheel 3 is disposed on four corners of the bottom of the base 1. The upper barrel body 4 is installed at the bottom of the support 2, the bottom of the upper barrel body 4 is of an open structure, the lower barrel body 5 is arranged below the upper barrel body 4, the top of the lower barrel body 5 is of an open structure, the opening of the upper barrel body 4 is over against the opening of the lower barrel body 5, and the base 1 is provided with the linear driving device 6 for driving the lower barrel body 5 to reciprocate along the vertical direction.
In this embodiment, be equipped with pressure device in the upper barrel 4, wherein, pressure device is including the piston 7 of locating the inside of upper barrel 4 in a sliding manner, and the lateral wall and the upper barrel 4 inner wall sealing connection of piston 7 are equipped with cylinder 8 on the support 2, and cylinder 8's output extends to the inside back of upper barrel 4 along vertical direction and is connected with piston 7. The piston 7 can be driven to do vertical reciprocating motion in the upper cylinder 4 by the action of the cylinder 8, so that water can be conveniently pressed towards the concrete sample 100.
Meanwhile, the concrete impermeability test equipment further comprises a pressure detection meter 9, a first water tank 10, a first water injection pipe 11, a first water discharge pipe 12, a second water tank 13, a second water injection pipe 14 and a second water discharge pipe 15, wherein the pressure detection meter 9 is arranged on the outer wall of the upper barrel 4 and is used for detecting the water pressure inside the upper barrel 4; the first water tank 10 is arranged on the bracket 2, the first water tank 10 is communicated with the inside of the upper barrel 4 through a first water injection pipe 11, and the second water tank 13 is arranged on the base 1; the second water tank 13 is communicated with the inside of the upper barrel 4 through the first water discharge pipe 12, so that water in the upper barrel 4 can flow into the second water tank 13 through the first water discharge pipe 12, and the effects of saving water resources and improving the utilization rate of the water resources are achieved; the second water tank 13 is communicated with the inside of the lower cylinder 5 through a second water injection pipe 14, and the second water discharge pipe 15 is communicated with the inside of the lower cylinder 5. Meanwhile, in order to facilitate control of the water injection pipes and the water discharge pipes, valves are connected to the first water injection pipe 11, the first water discharge pipe 12, the second water injection pipe 14, and the second water discharge pipe 15, and in order to facilitate the lifting of the lower cylinder 5, the second water injection pipe 14 can adapt to the lifting of the lower cylinder 5, and the second water injection pipe 14 is a hose.
In addition, the inner wall of the upper cylinder 4 is provided with a plurality of first abutting blocks 16 along the circumferential direction thereof, and the inner wall of the lower cylinder 5 is provided with a plurality of second abutting blocks 17 along the circumferential direction thereof; during the experiment, the top surface of concrete sample 100 and 16 bottom surfaces butt of first butt joint piece are sealed, and the bottom surface of concrete sample 100 and the 17 top surfaces butt of second butt joint piece are sealed, and lower barrel 5 top end face and last barrel 4 bottom end face butt are sealed. It should be noted that the communication position of the first water injection pipe 11 and the upper cylinder 4 in this embodiment is located below the piston 7, and is located above the communication position of the first water discharge pipe 12 and the upper cylinder 4; the communication part of the first drainage pipe 12 and the upper cylinder 4 is positioned above the first abutting block 16; meanwhile, the communication position of the second water injection pipe 14 and the lower barrel 5 is located below the second abutting block 17 and above the communication position of the second water discharge pipe 15 and the lower barrel 5.
Through the setting, make when experimental concrete sample 100 be in a relative inclosed space, concrete sample 100's outer wall can be sealed, even water flows out the back from concrete sample 100's outer wall, also can continue to flow to concrete sample 100's bottom along vertical direction, thereby reaches the purpose that improves final test result accuracy.
In this embodiment, an annular sealing groove 18 has been seted up along its circumference in the terminal surface of upper barrel 4 bottom, and the terminal surface of lower barrel 5 top is equipped with the annular sealing strip 19 with annular sealing groove 18 one-to-one along its circumference, and after barrel 5 moved up under the drive of linear drive 6 down, the annular sealing strip 19 that the terminal surface of lower barrel 5 top set up will insert in the annular sealing groove 18 that the terminal surface of upper barrel 4 bottom set up to realize sealed barrel 5 and upper barrel 4 down. In order to further improve the sealing performance between the upper cylinder 4 and the lower cylinder 5, the number of the annular sealing strips 19 is multiple, and the inner diameters and the heights of the plurality of annular sealing strips 19 are sequentially increased from inside to outside, so that water is more difficult to flow out from a gap between the upper cylinder 4 and the lower cylinder 5.
In this embodiment, in order to further improve the application scope of this concrete impermeability test equipment, the spout that has seted up with first butt piece 16 one-to-one is followed vertical direction to the inner wall of last barrel 4, and in one side cunning of first butt piece 16 was located the spout, the spout is equipped with the elastic component in, and elastic component one end is connected with the top in the spout, and the elastic component other end is connected with first butt piece 16. Specifically, referring to fig. 2, the elastic element includes a fixed column 20, a telescopic column 21 and a spring 22, one end of the fixed column 20 is connected to the top of the sliding chute, one end of the telescopic column 21 extends into the fixed column 20 and then is slidably connected to the fixed column 20, the other end of the telescopic column 21 is connected to the first abutting block 16, the spring 22 is sleeved on the outer wall of the fixed column 20, one end of the spring 22 is connected to the top of the sliding chute, and the other end of the spring 22 is connected to the first abutting block 16. Before experimental, place concrete test piece 100 in barrel 5 down earlier, utilize a plurality of second butt piece 17 to support concrete test piece 100, barrel 5 up-movement under linear drive device 6's drive down afterwards, make and form seal structure between barrel 5 and the last barrel 4 down, concrete test piece 100's top surface will contact with the bottom surface of first butt piece 16 simultaneously, thereby upwards push up first butt piece 16 through concrete test piece 100, thereby make this impervious test equipment of concrete can satisfy and carry out impervious experiment in the concrete test piece 100 of multiple not co-altitude, and the practicality is stronger.
In order to more clearly illustrate the concrete impermeability test apparatus provided in this embodiment, the impermeability test process will be described in detail below.
Referring to fig. 3, a concrete specimen 100 is installed; in an initial state, the lower barrel 5 is separated from the upper barrel 4, the concrete test piece 100 is placed in the lower barrel 5, the second abutting block 17 is used for bearing the concrete test piece 100, then the linear driving device 6 is started to drive the lower barrel 5 to move upwards until the annular sealing strip 19 at the top of the lower barrel 5 is inserted into the annular sealing groove 18 at the bottom of the upper barrel 4, the top surface of the concrete test piece 100 is in contact with the bottom surface of the first abutting block 16, and therefore the upper barrel 4 and the lower barrel 5 are used for sealing the concrete test piece 100 inside the upper barrel 5 and the lower barrel 5.
When a water seepage height method is adopted for carrying out an impermeability test, firstly opening a valve of a first water injection pipe 11, closing a valve of a first water discharge pipe 12, injecting water into the upper barrel 4 through the first water injection pipe 11 until the liquid level in the upper barrel 4 reaches the communication position of the first water injection pipe 11 and the upper barrel 4, closing the valve of the first water injection pipe 11 and stopping water injection; then, starting the air cylinder 8 to drive the piston 7 to move downwards to pressurize the water in the upper cylinder 4, and detecting the water pressure in the upper cylinder 4 through the pressure detection meter 9, so that the pressure of the piston 7 applied to the water in the upper cylinder 4 is controlled, the purpose of applying constant water pressure to the surface of the concrete test piece 100 is achieved, and the constant water pressure is continued for a certain time; recording the water pressure as the test starting time when the water pressure is constant, observing whether water seeps from the bottom of the concrete test piece 100 at regular intervals, stopping the test and recording the water seepage height if the water seeps from the bottom of the concrete test piece 100, and measuring the water seepage height of the concrete test piece 100 after taking out the concrete test piece 100 and splitting the concrete test piece 100 if no water flows out from the bottom of the concrete test piece 100 in the test time period. It should be noted that the valves of the second fill line 14 and the second drain line 15 were always closed during the entire test.
When a water seepage method is adopted for carrying out an impermeability test, the valves of the second water injection pipe 14 and the second water discharge pipe 15 are opened, water is injected into the lower barrel 5 through the second water injection pipe 14 until the second water discharge pipe 15 begins to discharge water, and the valve of the second water injection pipe 14 is closed to stop water injection; then, the valves of the first water injection pipe 11 and the first water discharge pipe 12 are opened, water is injected into the upper barrel 4 through the first water injection pipe 11 until the first water discharge pipe 12 starts to discharge water, and water in the first water discharge pipe 12 flows into the second water tank 13 for standby; controlling the water injection speed by controlling a valve of the first water injection pipe 11 so as to keep a constant water head difference in the upper cylinder 4 above the top surface of the concrete sample 100; a water receiving container is arranged below the second water drainage pipe 15, when the concrete sample 100 starts to permeate water, the test starting time is the time when the water flowing out of the bottom of the concrete sample 100 is dripped into the lower cylinder 5, so that the water amount in the lower cylinder 5 is increased, and the redundant water in the lower cylinder 5 is discharged into the water receiving container from the second water drainage pipe 15; after a period of time, the valves of all pipelines are closed, the total water in the water container is measured, so that the seepage flow in unit time is calculated, and the permeability coefficient of the concrete sample 100 can be calculated by further combining with the water head difference.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A polymer modified concrete impermeability test device comprises a concrete test piece, a base and a support arranged at the top of the base, wherein an upper barrel is arranged at the bottom of the support, a lower barrel is arranged below the upper barrel, a linear driving device used for driving the lower barrel to reciprocate along the vertical direction is arranged on the base, and a pressurizing device is arranged in the upper barrel; during the test, the top surface of the concrete test piece is abutted and sealed with the bottom surface of the first abutting block, the bottom surface of the concrete test piece is abutted and sealed with the top surface of the second abutting block, and the top end surface of the lower cylinder is abutted and sealed with the bottom end surface of the upper cylinder.
2. The polymer modified concrete impermeability test equipment of claim 1, wherein the bottom end surface of the upper cylinder is provided with an annular sealing groove along the circumferential direction thereof, and the top end surface of the lower cylinder is provided with annular sealing strips corresponding to the annular sealing groove one to one along the circumferential direction thereof.
3. The apparatus of claim 2, wherein the number of the annular sealing strips is multiple, and the inner diameter and the height of the plurality of annular sealing strips increase sequentially from inside to outside.
4. The polymer modified concrete impermeability test equipment of claim 1, wherein the inner wall of the upper barrel is vertically provided with sliding grooves corresponding to the first abutting blocks one by one, the first abutting blocks are slidably arranged in the sliding grooves, the sliding grooves are internally provided with elastic members, one end of each elastic member is connected with the top in the corresponding sliding groove, and the other end of each elastic member is connected with the corresponding first abutting block.
5. The apparatus according to claim 4, wherein the elastic member comprises a fixed column, a telescopic column and a spring, one end of the fixed column is connected to the top of the chute, one end of the telescopic column extends into the fixed column and then is slidably connected to the fixed column, the other end of the telescopic column is connected to the first abutting block, the spring is sleeved on the outer wall of the fixed column, one end of the spring is connected to the top of the chute, and the other end of the spring is connected to the first abutting block.
6. The apparatus according to claim 1, further comprising a pressure gauge, a first water tank, a first water injection pipe, a first drain pipe, a second water tank, a second water injection pipe and a second drain pipe, wherein the pressure gauge is disposed on an outer wall of the upper cylinder, the first water tank is mounted on the bracket, the first water tank is communicated with an inside of the upper cylinder through the first water injection pipe, the second water tank is mounted on the base, the second water tank is communicated with an inside of the upper cylinder through the first drain pipe, the second water tank is communicated with an inside of the lower cylinder through the second water injection pipe, and the second drain pipe is communicated with an inside of the lower cylinder.
7. The apparatus of claim 6, wherein valves are connected to the first water injection pipe, the first water discharge pipe, the second water injection pipe and the second water discharge pipe, and the second water injection pipe is a hose.
8. The polymer modified concrete impermeability test apparatus of claim 1, wherein the pressurizing device comprises a piston slidably disposed inside the upper cylinder, a side wall of the piston is sealingly connected to an inner wall of the upper cylinder, the piston is located above the first abutting block, the bracket is provided with a cylinder, and an output end of the cylinder extends to the inside of the upper cylinder in a vertical direction and is connected to the piston.
9. The polymer modified concrete impermeability test equipment of claim 1, wherein the base bottom is provided with a universal self-locking wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120926123.3U CN215066013U (en) | 2021-04-29 | 2021-04-29 | Polymer modified concrete impermeability test equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120926123.3U CN215066013U (en) | 2021-04-29 | 2021-04-29 | Polymer modified concrete impermeability test equipment |
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| CN215066013U true CN215066013U (en) | 2021-12-07 |
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| CN202120926123.3U Expired - Fee Related CN215066013U (en) | 2021-04-29 | 2021-04-29 | Polymer modified concrete impermeability test equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115931683A (en) * | 2023-03-15 | 2023-04-07 | 潍坊高新建设集团有限公司 | Building concrete impermeability test device and method |
| CN116223233A (en) * | 2023-01-09 | 2023-06-06 | 广州万友砼结构构件有限公司 | High-pressure test equipment for testing lightweight aggregate and lightweight concrete |
-
2021
- 2021-04-29 CN CN202120926123.3U patent/CN215066013U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116223233A (en) * | 2023-01-09 | 2023-06-06 | 广州万友砼结构构件有限公司 | High-pressure test equipment for testing lightweight aggregate and lightweight concrete |
| CN116223233B (en) * | 2023-01-09 | 2023-11-14 | 广州万友砼结构构件有限公司 | High-pressure test equipment for testing lightweight aggregate and lightweight concrete |
| CN115931683A (en) * | 2023-03-15 | 2023-04-07 | 潍坊高新建设集团有限公司 | Building concrete impermeability test device and method |
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